DIN EN 933-6-2014 Tests for geometrical properties of aggregates - Part 6 Assessment of surface characteristics - Flow coefficient of aggregates German version EN 933-6 2014《集料几何特性.pdf

1、July 2014Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91

2、.100.15!%5y-“2188610www.din.deDDIN EN 933-6Tests for geometrical properties of aggregates Part 6: Assessment of surface characteristics Flow coefficient of aggregates;English version EN 933-6:2014,English translation of DIN EN 933-6:2014-07Prfverfahren fr geometrische Eigenschaften von Gesteinskrnun

3、gen Teil 6: Beurteilung der Oberflcheneigenschaften Fliekoeffizienten von Gesteinskrnungen;Englische Fassung EN 933-6:2014,Englische bersetzung von DIN EN 933-6:2014-07Essais pour dterminer les caractristiques gomtriques des granulats Partie 6: valuation des caractristiques de surface Coefficient dc

4、oulement des granulats;Version anglaise EN 933-6:2014,Traduction anglaise de DIN EN 933-6:2014-07SupersedesDIN EN 933-6:2002-02 andDIN EN 933-6 Corrigendum 1:2004-09www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 23 pages06.14 DIN EN 93

5、3-6:2014-07 2 A comma is used as the decimal marker. National foreword This document (EN 933-6:2014) has been prepared by Technical Committee CEN/TC 154 “Aggregates” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Ma

6、terials Testing Standards Committee), Working Committee NA 062-03-13 AA Gemeinschaftsarbeitsaus-schuss NMP/FGSV: Gesteinskrnungen; Prfverfahren, Petrographie, Probenahme und Przision. Amendments This standard differs from DIN EN 933-6:2002-02 and DIN EN 933-6 Corrigendum 1:2004-09 as follows: a) the

7、 scope has been modified to conform to a resolution on the possible use of other test methods under specified conditions, and to allow the use of advanced test methods; b) Clause 5, Reference materials: a reference fine aggregate has been introduced to improve the precision data of the flow coeffici

8、ent of fine aggregates; c) Clause 6.4, Additional apparatus required for the determination of the flow coefficient of fine aggregates: a cylindrical feed hopper has been added to improve the precision data of the test; d) Clause 8.5, Test report: the list of required data has been updated; e) Annex

9、B, precision, Clause B.2: the precision data for fine aggregate provided by France have been updated following a more recent interlaboratory experiment for which a cylindrical feed hopper was used. Previous editions DIN EN 933-6: 2002-02 DIN EN 933-6 Corrigendum 1: 2004-09 EN 933-6April 2014 ICS 91.

10、100.15 Supersedes EN 933-6:2001English Version Tests for geometrical properties of aggregates - Part 6: Assessment of surface characteristics - Flow coefficient of aggregates Essais pour dterminer les caractristiques gomtriques des granulats - Partie 6: valuation des caractristiques de surface - Coe

11、fficient dcoulement des granulats Prfverfahren fr geometrische Eigenschaften von Gesteinskrnungen - Teil 6: Beurteilung der Oberflcheneigenschaften - Fliekoeffizienten von Gesteinskrnungen This European Standard was approved by CEN on 6 February 2014. CEN members are bound to comply with the CEN/CEN

12、ELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre

13、or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the of

14、ficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherland

15、s, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN

16、933-6:2014 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 933-6:2014 (E) 2 Contents PageForeword . 4 1 Scope 6 2 Normative references . 6 3 Terms and definitions . 6 4 Principle . 7 5 Reference mate

17、rials 7 5.1 Coarse aggregate material . 7 5.2 Fine aggregate material 7 6 Apparatus 8 6.1 General . 8 6.2 Apparatus for general purposes . 8 6.3 Additional apparatus required for the determination of the flow coefficient of coarse aggregate 8 6.4 Additional apparatus required for the determination o

18、f the flow coefficient of fine aggregate . 10 7 Determination of the flow coefficient of coarse aggregate 12 7.1 General . 12 7.2 Preparation of test portions . 12 7.2.1 Reference coarse aggregate 12 7.2.2 Test portions . 12 7.3 Procedure 13 7.3.1 Common test procedure. 13 7.3.2 Reference test . 14

19、7.3.3 Material sample test 14 7.4 Calculation and expression of results 14 7.5 Test report . 14 7.5.1 Required data 14 7.5.2 Optional data . 15 8 Determination of the flow coefficient of fine aggregate 15 8.1 General . 15 8.2 Preparation of test portions . 15 8.2.1 Reference fine aggregate . 15 8.2.

20、2 Test portions . 15 8.3 Procedure 16 8.3.1 Common test procedure. 16 8.3.2 Reference test . 16 8.3.3 Material sample test 16 8.4 Calculation and expression of results 16 8.5 Test report . 17 8.5.1 Required data 17 8.5.2 Optional data . 17 Annex A (informative) Example of test data sheet coarse aggr

21、egate . 18 Annex B (informative) Precision . 19 B.1 Coarse aggregate 19 DIN EN 933-6:2014-07EN 933-6:2014 (E) 3 B.2 Fine aggregate . 19 Annex C (informative) Example of test data sheet fine aggregate 20 Bibliography . 21 DIN EN 933-6:2014-07EN 933-6:2014 (E) 4 Foreword This document (EN 933-6:2014)

22、has been prepared by Technical Committee CEN/TC 154 “Aggregates”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2014, and conflicting national st

23、andards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepa

24、red under a mandate given to CEN by the European Commission and the European Free Trade Association. This document supersedes EN 933-6:2001. The main changes to the previous version of EN 933-6 are: - Scope: Updated to conform SC6 resolution n237/2006 on the possible use of other test methods under

25、specified conditions, and also to allow the use of advanced test methods; - Clause 5, Reference materials: a reference fine aggregate has been introduced to improve the precision data of the flow coefficient of fine aggregates; - 6.4, Additional apparatus required for the determination of the flow c

26、oefficient of fine aggregates: a cylindrical feed hopper has been added to improve the precision data of the test; - 8.5, Test report: the list of required data has been updated; - Annex B, precision, B.2: The precision data for fine aggregate provided by France have been updated following a more re

27、cent interlaboratory experiment for which a cylindrical feed hopper was used. This European Standard forms part of a series of tests for geometrical properties of aggregates. Test methods for other properties of aggregates will be covered by parts of the following European Standards: EN 932, Tests f

28、or general properties of aggregates EN 1097, Tests for mechanical and physical properties of aggregates EN 1367, Tests for thermal and weathering properties of aggregates EN 1744, Tests for chemical properties of aggregates EN 13179, Tests for filler aggregate used in bituminous mixtures The other p

29、arts of EN 933 are: Part 1: Determination of particle size distribution Sieving method Part 2: Determination of particle size distribution Test sieves, nominal size of apertures Part 3: Determination of particle shape Flakiness index DIN EN 933-6:2014-07EN 933-6:2014 (E) 5 Part 4: Determination of p

30、article shape Shape index Part 5: Determination of percentage of crushed and broken surfaces in coarse aggregate particles Part 7: Determination of shell content Percentage of shells in coarse aggregates Part 8: Assessment of fines Sand equivalent test Part 9: Assessment of fines Methylene blue test

31、 Part 10: Assessment of fines Grading of filler aggregates (air jet sieving) Part 11: Classification test for the constituents of coarse recycled aggregate According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this E

32、uropean Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,

33、Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 933-6:2014-07EN 933-6:2014 (E) 6 1 Scope This European Standard specifies the reference method used for type testing, and in case of dispute, for determining the flow coefficient of coarse and fine aggregates. For other purp

34、oses, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. Examples of advanced test methods can be found in the Bibliography. This European Standard applies to coarse aggregate of sizes

35、between 4 mm and 20 mm and to fine aggregate of size up to 2 mm. NOTE 1 For coarse aggregates between 4 mm and 20 mm, the flow coefficient is linked with the percentage of crushed or broken surfaces of an aggregate and can therefore be used in association with the method specified in EN 9335. Shape

36、and surface texture characteristics also influence the result. NOTE 2 Experience of this test has been generally limited to natural aggregates. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.

37、For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 932-2, Tests for general properties of aggregates - Part 2: Methods for reducing laboratory samples EN 932-5, Tests for general propertie

38、s of aggregates - Part 5: Common equipment and calibration EN 933-2, Tests for geometrical properties of aggregates - Part 2: Determination of particle size distribution - Test sieves, nominal size of apertures EN 933-3, Tests for geometrical properties of aggregates - Part 3: Determination of parti

39、cle shape - Flakiness index EN 1097-6:2013, Tests for mechanical and physical properties of aggregates - Part 6: Determination of particle density and water absorption 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 aggregate size designation

40、 of aggregate in terms of lower (d) and upper (D) sieve sizes expressed in terms as d/D Note 1 to entry: This designation accepts the presence of some particles which will be retained on the upper sieve (oversize) and some which will pass the lower sieve (undersize). 3.2 constant mass mass determine

41、d by successive weighings performed at least 1 h apart and not differing by more than 0,1 % Note 1 to entry: In many cases constant mass can be achieved after a test portion has been dried for a pre-determined period in a specified oven at (110 5) C. Test laboratories can determine the time required

42、 to DIN EN 933-6:2014-07EN 933-6:2014 (E) 7 achieve constant mass for specific types and sizes of sample dependent upon the drying capacity of the oven used. 3.3 laboratory sample sample intended for laboratory testing 3.4 particle size fraction, di/Difraction of an aggregate passing the larger (Di)

43、 of two sieves and retained on the smaller (di) 3.5 test portion sample used as a whole in a single test 4 Principle The flow coefficient of an aggregate is the time, expressed in seconds, for a specified volume of aggregate to flow through a given opening, under specified conditions using a standar

44、d apparatus. 5 Reference materials 5.1 Coarse aggregate material A 6,3/10 mm reference aggregate with a flow time of (100 2) s when the shutter has an opening of (42,0 0,2) mm. In the various calculations, the flow time ERof this reference coarse aggregate shall be taken as equal to 100 s and its pr

45、e-dried particle density pshall be taken as equal to 2,70 Mg/m3. NOTE At present the only recognized source of reference aggregate is a stock of quartzite aggregate controlled by the CEREMA, Direction territoriale Normandie Centre, Laboratoire Rgional de Rouen, 10 chemin de la Poudrire, CS 90245, 76

46、121 Le Grand-Quevilly cedex, France. Telephone: + (33) 2 35 68 81 00 Fax: + (33) 2 35 68 81 72 e-mail: LRR.DTerNCcerema.fr An alternative source of reference coarse aggregate can be used provided that the flow coefficient of that aggregate is established in a controlled experiment carried out in at

47、least 10 laboratories, by cross testing against the LRPC reference coarse aggregate. In this case, the flow time ERand the pre-dried particle density pof this alternative reference coarse aggregate should be used. In case of dispute, the LRPC reference coarse aggregate should be used. 5.2 Fine aggre

48、gate material A 0,063/2 mm reference aggregate with a flow time of (32 2) s. In the various calculations, the flow time ERSof this reference fine aggregate shall be taken as equal to 32 s and its pre-dried particle density shall be taken as equal to 2,70 Mg/m3. NOTE At present the only recognized so

49、urce of reference aggregate is a siliceous Somme bay fine aggregate controlled by the CEREMA, Direction territoriale Normandie Centre, Laboratoire Rgional de Rouen, 10 chemin de la Poudrire, CS 90245, 76121 Le Grand-Quevilly cedex, France. Telephone: + (33) 2 35 68 81 00 Fax: + (33) 2 35 68 81 72 e-mail: LRR.DTerNCcerema.fr An alternative source of reference fine aggregate can be used provided that the flow coeffic